Results 31 to 40 of about 240,017 (204)

Application of crossplot and prestack seismic-based impedance inversion for discrimination of lithofacies and fluid prediction in an old producing field, Eastern Niger Delta Basin

Journal of Petroleum Exploration and Production Technology, 2018
Lithofacies distributions and continuity are very important for proper reservoir development; and predicting the fluid types will also help in reducing uncertainties associated with characterizing hydrocarbon reservoirs. This study used Poisson impedance
C. G. Okeugo, K. M. Onuoha, C. A. Ekwe, O. A. Anyiam, C. I. P. Dim   +4 more
doaj   +1 more source

Prediction of Favorable Carbonate Reservoirs under Extremely Thick Salts via Poststack Facies-Controlled and Prestack Zoeppritz Equation Inversions in the Santos Basin of Brazil

Geofluids, 2020
Subsalt carbonate rocks in Brazil’s deepwater region have broad prospects for oil and gas exploration and development. Due to the low-frequency bandwidth of the seismic data and the poor signal quality for this kind of reservoir target, there is a demand
Sheng Zhang, Suoliang Chang, Handong Huang, Yinping Dong, Youyi Shen, Yaneng Luo, Baoheng Zhu   +6 more
doaj   +1 more source

Amplitude-Versus-Angle (AVA) Inversion for Pre-Stack Seismic Data with L0-Norm-Gradient Regularization

Mathematics, 2023
Amplitude-versus-angle (AVA) inversion for pre-stack seismic data is a key technology in oil and gas reservoir prediction. Conventional AVA inversion contains two main stages.
Ronghuo Dai, Jun Yang
doaj   +1 more source

Structure-Guided Directional-Decomposition Lp–L2 Regularization for Prestack Multi-Parameter Seismic Inversion

Applied Sciences
In prestack seismic inversion for structurally complex areas, elastic parameters commonly show strong directional heterogeneity (layer-parallel continuity versus cross-layer discontinuities), so conventional structure-guided schemes based on isotropic ...
Hao Chen, Handong Huang, Gang Cui, Jiahui Peng, Yaning Wu   +4 more
doaj   +1 more source

A High Resolution Method for Fluid Prediction Based on Geostatistical Inversion

International Journal of Geophysics, 2013
In order to predict the fluid in thin layer precisely, this paper proposed a high-resolution method for fluid prediction. The method used geostatistical inversion with lithology masks to calculate water saturation.
Zhen Yu, Jing He
doaj   +1 more source

Application of Double Width Seismic Data to Channel Sand Body Prediction of X Gas Field in the East China Sea

CT Lilun yu yingyong yanjiu, 2022
Due to that the main reservoirs of the X gas field in the East China Sea were deeply buried and have large lateral changes, the conventional seismic data resulted in poor quality and low resolution, which couldn’t meet the increasingly refined geological
Wei HU, Dewen QIN, Qin LI, Weizhe YU, Jun HUANG   +4 more
doaj   +1 more source

Two Distinct Growth Styles of Riedel Shear Zones in Cratonic Strike‐Slip Fault System, Tarim Basin, NW China

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract The kinematics and progressive evolution of Riedel shear zones have been extensively studied, yet the factors controlling their distinct evolutionary styles in natural settings remain debated. Understanding such fracture network architecture has great implications, such as predicting subsurface fluid flow and assessing seismic hazards.
Jiajun Chen, Zhanfeng Qiao, Tianfu Zhang, Uwe Ring, Shaoying Chang, Peng Cao, Mengxiu Wang, Yifan Du   +7 more
wiley   +1 more source

A Conjugate Operator Pair of Partial Differential Equations Bridging Born and Kirchhoff Approximations for Wave‐Equation Inversion

Geophysical Prospecting, Volume 74, Issue 6, July 2026.
ABSTRACT A conjugate operator pair is introduced for wave‐equation Kirchhoff modelling and migration, formulated as time‐space partial differential equations. The operator pair allows for iterative linearized waveform inversion and supports the reconstruction of angle‐dependent reflectivity images. The proposed forward modelling operator represents the
Wei Zhang, Mauricio D. Sacchi
wiley   +1 more source

3D velocity-depth model building using surface seismic and well data [PDF]

, 1998
The objective of this work was to develop techniques that could be used to rapidly build a three-dimensional velocity-depth model of the subsurface, using the widest possible variety of data available from conventional seismic processing and allowing for
Sexton, Paul
core  

Joint Fluid Factor and Brittleness Index Inversion of a Coal-Measure Gas Reservoir with Vertical Transverse Isotropy [PDF]

Lithosphere
A coal-measure gas reservoir can be practically approximated as a medium with vertical transverse isotropy (VTI), accounting for the anisotropy caused by near-horizontal bedding and fractures.
Haibo Wu, Congshun Gao, Wang Xiang, Yaping Huang, Miao Zhang   +4 more
doaj   +1 more source